Work-supporting plate.



J. H. PBTTIT, WORK SUPPORTING PLATE.

APPLICATION FILED D3017. 1913.

1,122,999, Patnted Dec.29,1914.

1, 4, awe/whom John: H. PE'TTH' W wgw...

THE NORRIS PETERS co.. PHOTO-LITHO.. WASHINGTON. u, c.

. disclosed in Fig. 3, so as to retain TE STATES WORK-SUPPORTING PLATE.

Application filed December 1'7, 1913.

To aZZ whom it may concern Be it known that 1, JOHN H. Pn'rrrr, acitizen of the United States, residing at Great Falls, in the county ofCascade and State of Montana, have invented certain new and usefulImprovements in York- Supporting Plates, of whichthe following 1s aspecification, reference being had therein to the accompanying drawing.

This invention relates to a work'supporting plate attachment and has forits object the provision of a simple and efficient means for guardingthe feeding mechanism of an ordinary sewing machine so as to prevent thefeeding mechanism from shifting the goods, since the body portion of thedevice is positioned above and held in detachable position over thefeeding IIIGOhZUIlSIH:

Another object of this invention is the production of a work-supportingplate attachment which is adapted to overhang the feeding mechanism ofthe machine and which is so formed as to be held at a spaced distanceabove the feeding mechanism, and thus preventing the plate from engagingthe feeding mechanism.

vVith these and other objects in view this invention consists of certainnovel combinations, constructions and arrangements of parts as will behereinafter fully described and claimed.

In the accompanying drawing :Figure 1 is a perspective view of theworlesupporting plate, the pad being removed. Fig. 2 is a centrallongitudinal section taken through the plate, showing the pad carriedthereby. Fig. 3 is a section taken on the line 3-3 of Fig. 1 looking indirection of the arrows. Fig. 4 is a plan view of the blank from whichthe plate is formed.

Referring to the accompanying drawing by numerals 1 designates the bodyportion of the work-supporting plate which is preferably rectangular inshape and which is provided with a central opening 2 for allowing theneedle of a machine to pass therethrough. The body 1 is provided uponits side portions with the scored portions 3 adjacent which is formedthe flanges 41. These flanges 4 are bent downwardly, as clearly the pad5 upon the lower side of the body 1. This pad 5 may also be glued orcemented in the plate 1 and will be protected by means of the flanges 4.This pad is also provided Specification of Letters Patent.

Patented Dec. 29, 1914:-

Serial No. 807,320.

with an opening 6 which registers with the opening 2 formed in the body1 for allowing the needle to have free passage therethrough. In order tosupport this body portion and pad at a spaced distance above the feedingmechanism of the machine and thereby allowing the mechanism to operatewithout injury to the same, one side portion of the body 1 is providedwith an enlarged finger 7 which is integrally connected to the body 1 bymeans of the enlarged integral lip 8 which is bent under the scoredlines 9. This lip 8 is longer than the width of the flanges 4 wherebythe same will depend for a considerable distance below the lower edge ofthese flanges. The pad 5 also extends so as to rest snugly upon theunder side of this lip 8 and engages the under side of the finger 7.This finger 7 carries a side flange 10 which is scored along the line 11for allowing the ear 12 to be bent angularly to fit upon the lower sideof the rear portion of the pad 5 as shown in Fig. 3, thereby securelyholding this portion of the pad in engagement with the lower side of thefinger 7. This finger 7 and a portion of the pad 5 are provided withregistering openings 13 for allowing the usual set screw carried by themachine to pass therethrough for holding the device upon the machine.

When this device is in use, the finger extends across the usual workplates of the machine and is engaged by the screw which is generallycarried adjacent the work plates. The finger will be held in position bythis screw so as to allow the rear portion of the pad 5 to bear firmlyupon the machine while the body portion 1 and the pad 5 will be held ata spaced distance from the body of the machine as clearly disclosed inFigs. 2 and 3. When the machine is in operation it will be seen that thefeeding mechanism may be moved freely without engaging the cloth orwithout engaging the pad or plate as the lip 8 will hold the pad andbody of the plate at a spaced distance above the feeding mechanism whilethe openings 2 and 6 will allow the needle to pass and operate freely.

From the foregoing description it will be seen that a simple andefiicicnt work-supporting plate has been produced which will guard thefeeding mechanism of a machine and which is provided with means forholding the same so as to allow the several parts of the machine tooperate freely and without interfering with the cloth which ispositioned upon the plate.

It will be noted that the pad 5 by overhanging the feeding mechanism ofthe machine will prevent the possible injury to the feeding mechanism.Normally the body 1 and flanges 4: will hold the pad at a spaceddistance above the feeding mechanism. If, however, a heavy blow isaccidentally struck the plate at its central portion as where a pair ofshears happen to fall upon the same, the plate will be depressed at itscentral portion although the flanges 4: will first strike upon the bodyof the machine, since the plate is formed of sheet metal. At this timethe pad 5 will come into engagement with the feeding mechanism, andthereby prevent the teeth of the feeding mechanism from becoming bluntby striking the body 1 as would be the case if the pad 5 were not used.

What is claimed, is

A work supporting plate comprising a body, a lip extending from saidbody, a finger formed integral upon said lip, said finger positioned outof alinement with said body and extending in a plane parallel thereto,said lip being adapted to be secured to the body of a machine so as toallow the body of said work supporting plate to be positioned above thefeeding mechanism of the machine, and a protector pad carried by the endportions of said body and finger whereby the feeding mechanism of themachine will be protected, said pad being adapted to come intoengagement with the feeding mechanism when the body is accidentallyknocked downwardly, thereby preventing the feeding mechanism frombecoming injured.

In testimony whereof I hereunto afiix my signature in presence of twoWitnesses.

JOHN H. PETTIT.

Witnesses J. WV. SPEER, F. A. EWALD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

